## Electrical question

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ed
Posts: 40650
Joined: Tue Jun 08, 2004 11:52 pm
Title: G_D

### Electrical question

We put in a wall. Ironically constructed by Mexicans.

We want some lighting. Got some 12v little things. But we found another light. LED too but 120 volts. It seems to me that I can convert the sucker to 12v like all of it's brethren and like any good christian LED ought to be. Anyone want to venture thoughts on this matter?

Rob, I will not refrigerate it.
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ed
Posts: 40650
Joined: Tue Jun 08, 2004 11:52 pm
Title: G_D

### Re: Electrical question

Ironic. They are pals so I would expect nothing less.
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ed
Posts: 40650
Joined: Tue Jun 08, 2004 11:52 pm
Title: G_D

### Re: Electrical question

That's Miguel. He is the crew boss.
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Witness
Posts: 34614
Joined: Thu Sep 19, 2013 5:50 pm

### Re: Electrical question

I doubt you'll have much success. From Wikipedia:
LEDs run on direct current (DC), whereas mains current is alternating current (AC) and usually at much higher voltage than the LED can accept. LED lamps can contain a circuit for converting the mains AC into DC at the correct voltage. These circuits contain rectifiers, capacitors, and may have other active electronic components, which may also permit the lamp to be dimmed. In an LED filament lamp, the driving circuit is simplified because many LED junctions in series have approximately the same operating voltage as the AC supply. LEDs require a power supply system (driver) to interface them with the electric network.
ed
Posts: 40650
Joined: Tue Jun 08, 2004 11:52 pm
Title: G_D

### Re: Electrical question

As I recall from my electrical engineering days, leds are back biased diodes. They somehow hold the voltage at the zeiner break point or something like that ... they limit the current so the damn thing don't burn up.

Thing is that they have a rectifier and transformer in the 120v light. Seems I can hack that stuff out and go directly to the current limiting circuitry.

Hmmmmm I sense trial and error brewing.
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sparks
Posts: 17162
Joined: Fri Oct 26, 2007 4:13 pm
Location: Friar McWallclocks Bar -- Where time stands still while you lean over!

### Re: Electrical question

This will get interesting.
You can lead them to knowledge, but you can't make them think.
Rob Lister
Posts: 23535
Joined: Sun Jul 18, 2004 7:15 pm
Title: Incipient toppler
Location: Swimming in Lake Ed

### Re: Electrical question

ed wrote: Sun Jul 05, 2020 10:20 pm We put in a wall. Ironically constructed by Mexicans.

We want some lighting. Got some 12v little things. But we found another light. LED too but 120 volts. It seems to me that I can convert the sucker to 12v like all of it's brethren and like any good christian LED ought to be. Anyone want to venture thoughts on this matter?

Rob, I will not refrigerate it.
Dude! Are you on drugs or something? You might as well say, "Hey, I've got this random box of electrical shit that I need to connect somewhere. How do I do that?"

What kind of reply do you want? You gotta be more fucking specific. Otherwise:

Hey ed, just buy some random LVPS along with some random wires and fixtures and that will be it.

Now pay me.
ed
Posts: 40650
Joined: Tue Jun 08, 2004 11:52 pm
Title: G_D

### Re: Electrical question

Hmmm ... plugged in the fixture in question. Too damn bright. Needs to be returned.
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solely
Posts: 1478
Joined: Sun Jul 28, 2019 4:41 pm

### Re: Electrical question

When you return it make sure they understand the light is too bright.
Rob Lister
Posts: 23535
Joined: Sun Jul 18, 2004 7:15 pm
Title: Incipient toppler
Location: Swimming in Lake Ed

### Re: Electrical question

We don't want them to inadvertently put that back on the shelf.